Update webview-ui/src/context/ExtensionStateContext.tsx

Co-authored-by: ellipsis-dev[bot] <65095814+ellipsis-dev[bot]@users.noreply.github.com>

webview-ui/src/context/ExtensionStateContext.tsx

@@ -255,4 +255,4 @@ export const useExtensionState = () => {
 }
 
 export const mergeExtensionState = (prevState: ExtensionState, newState: ExtensionState): ExtensionState =>
-	merge(prevState, newState)
+	merge({}, prevState, newState)